Korea Nazarene University is planning to expand its English teaching into the area public school system. This is a great opportunity for ministry (and paying off debt!). Check out this article for more details.
KNU also wants to hire more professors to teach within the university system. The article above does not talk about this, but if you have a masters degree, you are eligible to teach at the university (less hours, more vacation, better pay). The initial contact person is the same.